LTC1644IGN#TRPBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Quiescent Current
• Package: 16-Lead SSOP
• Essence: Voltage Regulator
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.6V to VIN
• Output Current: Up to 1A
• Quiescent Current: 40µA (typical)
• Switching Frequency: 1MHz
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LTC1644IGN#TRPBF has a 16-lead SSOP package with the following pin configuration:

1. VIN: Input Voltage
2. GND: Ground
3. SW: Switch Node
4. FB: Feedback Voltage
5. EN: Enable Pin
6. VCC: Supply Voltage
7. PGND: Power Ground
8. NC: No Connection
9. NC: No Connection
10. NC: No Connection
11. NC: No Connection
12. NC: No Connection
13. NC: No Connection
14. NC: No Connection
15. NC: No Connection
16. NC: No Connection

Functional Features

• High Efficiency: The LTC1644IGN#TRPBF offers high efficiency power conversion, minimizing energy loss.
• Low Quiescent Current: With a low quiescent current of only 40µA, it helps conserve power in standby mode.
• Wide Input Voltage Range: It can accept input voltages ranging from 2.7V to 5.5V, making it suitable for various applications.
• Adjustable Output Voltage: The output voltage can be adjusted from 0.6V to the input voltage (VIN).
• Overcurrent Protection: The LTC1644IGN#TRPBF incorporates overcurrent protection, safeguarding the circuit and load.

Advantages and Disadvantages

Advantages: - High efficiency power conversion - Low quiescent current for power-saving - Wide input voltage range for versatility - Adjustable output voltage for flexibility - Overcurrent protection for circuit and load safety

Disadvantages: - Limited output current of up to 1A - Restricted operating temperature range (-40°C to 85°C)

Working Principles

The LTC1644IGN#TRPBF is a voltage regulator IC that converts an input voltage into a regulated output voltage. It utilizes a switching regulator topology to achieve high efficiency. The input voltage is stepped down to the desired output voltage using an internal power MOSFET switch. The feedback voltage pin (FB) monitors the output voltage and adjusts the duty cycle of the switch to maintain a stable output. The enable pin (EN) allows for control of the regulator's operation.

Detailed Application Field Plans

The LTC1644IGN#TRPBF finds applications in various fields, including:

1. Portable Electronics: It can be used in battery-powered devices such as smartphones, tablets, and portable media players to efficiently regulate the power supply.
2. IoT Devices: The low quiescent current and wide input voltage range make it suitable for IoT devices that require long battery life and compatibility with different power sources.
3. Industrial Automation: It can be employed in industrial automation systems to provide stable and efficient power to sensors, actuators, and control circuits.
4. Automotive Electronics: The LTC1644IGN#TRPBF can be utilized in automotive applications, such as infotainment systems, lighting controls, and engine management modules.

Detailed and Complete Alternative Models

1. LTC1645IGN#TRPBF: Similar to LTC1644IGN#TRPBF, but with higher output current capability (up to 2A).
2. LTC1646IGN#TRPBF: Offers additional features like adjustable soft-start and power good indicator.
3. LTC1647IGN#TRPBF: Provides synchronous rectification for improved efficiency.

These alternative models offer similar functionality to the LTC1644IGN#TRPBF but may have different specifications or additional features to suit specific application requirements.

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